Group A referred to in touring car sports a very specific stage of processing of the vehicles from the 1980s until today. In the World Rally Championship, a variation of group A vehicles called World Rally Car ( WRC) has been used since 1998, which is based since the 2011 season, the Super 2000 regulations.
These processing stages were divided by the FIA - and for group N, A, B, etc. Of these groups, the group N was the " mildest " tuning level. In the next freer group A, all series parts may be edited. This means that the flywheel may be connecting rod and crankshaft facilitates unlimited, polished and cured by heat treatment. The camshaft, piston and various other parts are optional.
Also the external appearance of the vehicle remains substantially unchanged. The fenders may crimped but not be widened. An exception is the so-called kit cars, where a broadening of the kit (Kit ) belongs and is homologated. On the chassis of the exchange of shock absorbers and springs are allowed.
The technical output data are in Group A homologation.
The precursor of group A was the group described in the previously valid regulations 2
The detailed provisions for the group A are in Article 255 of the International Sporting Code of the FIA.
The provisions of group A are only applicable to touring car, which must have 4 seats. The minimum quantity is 2,500 units in 12 calendar months.
The A- homologation indicates no separate weight. Therefore, the true mentioned in Article 255 minimum weight. This is, for example, in rally cars with a cylinder capacity:
- To 1000 cc: 720 kg
- Up to 1400 cc: 920 kg
- To 2000 cc: 1000 kg
- Etc., specified in the read link below.
At other events, lower minimum weights than in rally events apply. For WRC cars the minimum weight of 1230 kg with a maximum of 2000 cm ³ applies.
- Piston sleeves, but without exceeding the capacity class
- Cylinder head gasket
- Pistons and bearings
- Air filter housing
- Fuel pump and filter, throttle linkage, pressure regulator and supply lines
- Camshaft (s ) with certain restrictions
- Valves in material and form, but the angle of the valve axes must be respected
- Ignition system, except number of spark plugs
- Cooler, oil cooler, oil pump, however, the body must not be changed
- Exhaust system from Krümmeraustritt / Turbo output
- Seals, springs, pulleys
- Clutch, differential lock
- Wheels and tires, the maximum width is limited depending on the engine capacity
- Brake system
Each part series, whose origin can be determined by the manufacturer, including the non-exempted parts should be reworked in any mechanical way. Nuts, bolts and screws must be replaced. However, the addition of material is prohibited.
The mere enumeration of the permitted and prohibited changes still conveys no impression of the vehicle, which is served on the way to meaningful consultation work. With a production car with a value of 20 - to 30,000 euros as a base again incur costs in at least double the amount, possibly more. Here, wear parts such as tires not included.
Unlike a one-make cup car, the make and the dimension of the tires is not mandatory. Extensive tests are recommended to find the best combination; the difference can amount to several seconds on the small track in Hockenheim.
Street legal has a Group A touring car no more, even if you find a gracious TÜV for registering. The Group A Rally cars must quite the applicable laws of the organizing country meet as it is driven on the Zwischenettapen in public transport. In the area of DMSB events, group A is also advertised only in uphill races and circuit races, rallies and slaloms are a no-no. All participants arrive by car on a trailer, if not in a closed truck. For technical acceptance of the trolley is pushed and does not move under power.
For this you get a ride that was only to be found in the formula range 10 to 20 years ago, and the lap times of the 2006 Group A cars are similar to those of formula -2 in the 70s.